Poly (lactic acid) blends: Processing, properties and applications.

By M. Nofar, Dilara Saçlıgil, P. Carreau, Musa R. Kamal, M. Heuzey. International Journal of Biological Macromolecules, 2019

669 citations recorded by the source corpus.

Poly (lactic acid) or polylactide (PLA) is a commercial biobased, biodegradable, biocompatible, compostable and non-toxic polymer that has competitive material and processing costs and desirable mechanical properties. Thereby, it can be considered favorably for biomedical applications and as the most promising substitute for petroleum-based polymers in a wide range of commodity and engineering applications. However, PLA has some significant shortcomings such as low melt strength, slow crystallization rate, poor processability, high brittleness, low toughness, and low service temperature, which limit its applications. To overcome these limitations, blending PLA with other polymers is an inexpensive approach that could also tailor the final properties of PLA-based products. During the last two decades, researchers investigated the synthesis, processing, properties, and development of various PLA-based blend systems including miscible blends of poly l-lactide (PLLA) and poly d-lactide (PDLA), which generate stereocomplex crystals, binary immiscible/miscible blends of PLA with other thermoplastics, multifunctional ternary blends using a third polymer or fillers such as nanoparticles, as well as PLA-based blend foam systems. This article reviews all these investigations and compares the syntheses/processing-morphology-properties interrelationships in PLA-based blends developed so far for various applications.

Subfields: Biomaterials, Organic Chemistry, Process Chemistry and Technology

View Paper: https://www.semanticscholar.org/paper/2b6b473a98ee3b0059eb4daa9e8f2e98e4cd3b95

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In Biomaterials

1. Reza Salehiyan
2. M. Nofar
3. S. Sinha Ray
4. Eda Hazal Tümer
5. H. Erbil
6. J. Rhim
7. Masami Okamoto
8. Chul B. Park

In Organic Chemistry

1. S. Sinha Ray
2. M. Nofar
3. Eda Hazal Tümer
4. H. Erbil
5. Reza Salehiyan

In Process Chemistry and Technology

1. Reza Salehiyan
2. S. Sinha Ray
3. M. Nofar
4. Eda Hazal Tümer
5. H. Erbil

Citations in the corpus

• Extrusion-Based 3D Printing Applications of PLA Composites: A Review (2021, background): “On the other hand, the morphology of the blend and the interactions between polymer—polymer and polymer—nanoparticles also affect the final properties of the 3D-printed product and should be considered [53].”
• Rheology of poly (lactic acid)-based systems (2019, background): “In blend nanocomposites, not only the final morphology of the blend but also the interfacial properties between the three components determine the final features of the product.(106) As a result of the interfacial interactions, nanoparticles could localize in polymer A, polymer B, or at the interfac”